Making wrought-iron.



P. F. CHARLES 611.1. BRODERICK. i.r. BRODEIIIGK. ADMINISTRATRIX 0F1.1. BRoD'ER|cK,pEcD.

MAKING WROUGHT IRON. APPLICATION FILED IMI-23. |914.

Patented Nov. 14, 1916.

3 SHEETS-SHEET I.

P. F. CHARLES & J. l. BRODERICK.

E. F. BRODERICK, ADMINISTRATRIX 0F1l BRODERICK, DECB.

MAKING wRouGfHT IRON.

APPLICATION HLED JAN.23, 1914.

Patented Nov. 14, 1916.

s sains-SHEET 2.

@mM/num? P. F. CHARLES@ I, 1. BRODERICK. E. F. BRODEHII'IK. ADMINISTRATRIX OFI. I. BRODERICK, DEC'D. lMAKING WROUGHT IRON.

APPLICATION FILED IAN. 23, 1914.

Patented Nov. 14, 1916.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE PATRICK r. CHARLES AND JOHN J. BRCDERICK, or GIRARD, R10, ELIZABETH E'Bon- Enron,A ADMINISTRATRIX or SAID JOHN J. BRODERICK, 'DECEAsEn .assIcNoRs or ONE-TENTH TO -EDWARD A. KIRBY, OF GIRARD, OHIO, NINE-TWENTIETHS TO SAID PATRICK F. CHARLES, AND NINE-TWENTIETHS T0 SAID ELIZABETH F. BRODERICK,

INDIVIDUALLY.

MAKING -WROUG-HT-IBON. l

Application led January 23, 1.914. Serial No. 813,970.

United States, residing at Girard, in the 'of a revolving boilinfT county of Trumbull and State of Ohio, have invented cnew and useful Improvements in Making Vrought-Iron, of which the following is a specification. l

This invention relates to improvements in puddling furnaces and processes for. making wrought iron, one object of the invention being t o provide a Wrought iron makingr plantcomprising a rotary boilingv fur nace, a puddling furnace and means for transferring metal from the boiling furnace to the puddling or balling furnace for manual paddling in the latter; another object being to'provide a Wrought ironv making plant comprising a double balling furnace double balling or puddling furnace, cranes Patented Nov. 14, 191,6.

for transferring the initially treated metal from the boiling furnaces to the ballingior puddling furnace. Fig. 2 is a vertical longitudinal sectional view of one of the boiling y y furnaces .in which the metal is initially treated. Fig. 3 is a vertical longitudinall sectional view of the balling or V-puddling furnace. Fig. 4 is a .vertical transverse secr tional view of the same. Fig. 5 is an ,eleva-v tion of the saine. v

I, Heretoforeithas been proposed'toproduce wrought iron Without the employment of manual labor inpuddling and bythe use of revolving furnaces in which .the pig iron Was melted and` otherwise treated. Such process and the employment of 4such furnaces has been,y however, practically' unsuccessful, the metal produced thereby being of and a pair of revolving boiling furnaces ary ranged at opposite sides of the balling furnace,'and means to transfer metal first from one boiling furnace and then from the other to the balling or' puddling furnace and thus enable wrought iron to be readily produced in large quantities and by the employment of comparatively few Workmen.

Another object of your vinvention is to provide' an improved process for making wrought 4iron and by means of which the use. furnace may be availedof in melting, lnuxing, boiling, and 'graining pig iron, Without the employment of manual labor, and a balling furnace then employed to which the said treated pig iron f is transferred from the boiling furnace and greatly inferior quality and'not properly to be called serviceable Wrought iron such as is demanded in the arts and purposesof commerce. y

The. practice of melting the metal in the same furnace in which it is to be balled, or puddled has been resorted to and this is extremely expensive inasmuch as it frequires the services 'of skilled pnddlers who must perform exhausting as well as highly skilled f of manual labor and then finished o'r-balled manually thus greatly economizing in the employment of manual labor inthe making v of `Wrought iron and hence mater/tally lessening the cost of production of .'/fsuch iron while greatly promoting the intbrestsand reducing the labor of the puddlers.

In the accompanying drawings z`-Figure 1 is a plan of awrought iron making plant arranged in accordance With our invention and comprising a pair of boiling furnaces, a

manual labor at such furnaces duringpractically the entire process fof convertingpig iron into wrought iron.

7e have discovered that inthe making of Wrought iron a' revolving boiling furnace may be availed of, Which does. notiequire v f the services of puddlers, during the initial" steps of convertingpig iron in-to wrought Iron and up to the point `of graini the be thus transferred to a balling furnace and finished in such balling furnace by manual' 'l manipulation by puddlers, sothat theemployment of such skilled manual, labor is iron.

We have also invented an irriproved',vuio'c-A ess by which wrought iron may vbet thus In accordance ivith our invention and in ,f

order. to carry out our improvedproce'ss we A provide, asa Wrought 'iron 'making plantfa,4k

iron, and thatr the metal thus prepare 'may BEST AVAILABLE COP double hailing furnace 1 and a pair of re-v volving boiling furnaces 2. The double balling furnace comprises a halling furnace 3, `a lire cliaiiiber 4 at one side ofand communicating with the balliiig furnace. a Hue 5 leading.r from theopposite side of the balling chamber and a smoke stach (i iito the lowei cnil of which the flue iilisiharges. At each end of the balling furnace is a vertically movable door T cach door being provided with a swinging frame 8 and an opel-ating chain J to enable the'door to be pulled up when drawing the balls. fach door has the usual coiiipaiatively siiiallopening or door bit 1U through which the baller or piiddlcr performs his work. ln oneei'id wall' of the iirc'ijbamber is a lire hole 11 through which coalfis placed on the tire, iii cases where the is lii'ed with coal as a fuel. In thc top 1'. of the balliiig furnace is an ig over which is a movable door 13 which may he moved from one side of said halliiig furnace to the other and oversaid door VVis a charging chiite 14.

l'lacli boiling furnace 2 comprises a cylindrical revoluble body 15. a fixed fire chanibeil 1G and a flue 17. The cylindrical chainher body 15 is lined with lirehricli' and is provided at the end next thefire chamber 16 with an opening 1S for the entrance of fuelI charke gas and at the opposite end with an opening l!) for the exit of products of combustion the opening l!) being also the opening through wliichfthe pig iron is placed in the body of the furnace. A door I) is also pi'ovided to afford access to the charging opening.

A supporting frame .'1 is also provided, which isuiidei' the rcvoluble body of the furnace and is provided with anti-friction rollers 22 on which.the lower side of the furnace body 15 rests and on which the said fui'- nace body is adapted to readily turni At the center of the furnace body is a toothed rim 23 which is engaged by the pinion :21 of a .suitable motor for revolving the fui'- nice. bodv, 'Vl-he furnace body is adapted to be lifted from the supporting frame as by means of a lsuitable -crane .26 and carried to 'the balling furnace and its contents discharged into the balling furnace.v after which the body of the boiling furnace then restored to its initial operative condition on the supporting frame. i

vIn practice the'boiling` furnaces are arranged at opposite sides of balling furnaces, and at a suitable distance therefrom. To enable the bodies of the boiling furnaces to be lifted and carried by the cranes they are provided with suitable rings 28 and,also

with bridlessQ? to hold them steady when in operation. Saidbridles are connected to beaiiis27l which are suspended from the cranes. e

It will be observed that the longitudinal 'being operated.

bars 27 secured directly oveigenchof the iieclel of the boiler being slid off the neck i r of the stationary heater chainber,lwhile the iiecli l!) is free to move into ,the fluel 17, the opening 17 in this flue being of a size large enough to permit the boiler heilig set at an upward inclination relatively to the flue so as to clear the neck 3* as being removed out of the opening 1T as the crane is pei'iiiit this boiler being properly positioned` to Ipermit its neck 18 being fitted over the lneck 3. ready for another operation;

Inthe operation of our improved `wrought iron makingplantand in carrying oiitour f im'proved,process we in practice employ -a Lcrew of six men of whom two are ballers or puddlers. two are helpers and two are melters. (hie. puddler and oneyhelper are stationed at each side-'of theI doiihle balling furnace and one nielter is stationed at each boilingl furnace. Assuming that the furnaces are heated to the proper degree No. 1 boiling furnace will be charged with a heat 4of metal and at an hour subsequently No. 2 boiling furnacewill also be charged with a heat of metal. Immediately after each boiling furnace charged vit will be started iii rotation. The revolving of the' furnace body greatly facilitates the melting of the pig iron and during the course of about fifty minutes the pig iron is thoroughly. melted* n and is ready for fluxing. 'This is done by throwing cinder or scale through 'a smallc inoutligfroiii the mouth ofthe fire chamber and sa'idjboiling furnace No. 1 is then swung by thjc crane to the balling furnace and its" heat transferred through the ohute`14 and the do i513 to one side ofthe balling furnace and their lhelpers and -dropped, turned,

ou'glilvyvprepared in this manner' is then inadeinto fballs, the balls beintheny taken. to thej squeezers, formed into logins and then 'rolled into 'inuck bar or pure;v i

By causing the crane tolee ` of saidchamber, This heat of raw or halfl i i `finishedf'-iron is then mixed'by the puddlers iis broken` up as it s'tifl'ens'4 'and when thor-f.- 

